Abnormality of the voice Hypernasal speech SNOMEDCT_US:289190003 UMLS:C0454555 HP:0001611 Nasal voice UMLS:C0566620 A type of speech characterized by the presence of an abnormally increased nasal airflow during speech associated with structural abnormality of the nasal passages. SNOMEDCT_US:229645001 Nasal speech May be associated with incomplete or weak closure of the velum. Examination is by nasal endoscopy. HP:0001614 Hypernasal voice